This IT infrastructure assignment addresses key concepts in networking and system design. The solution begins by defining application architecture and its components, contrasting thin-client and thick-client architectures with examples like Microsoft OneDrive, Fortnite, and Twitter. It then explains the Domain Name System (DNS), the resolution of hostnames to IP addresses, and the differences between A and MX records, using nslookup to find MX records for iu.edu. The assignment further delves into the layered approach of technology systems, such as the Internet Model, discussing its benefits in terms of task implementation, security, and information exchange. Network analysis using Wireshark is demonstrated, including packet filtering and analysis of HTTP requests. The document also describes how a message is transferred in the opposite direction through the OSI model layers and how to find a computer's IP address using the ipconfig command, along with the use of traceroute to diagnose network routing issues. The solution includes examples from both home and coffee shop network environments, providing a detailed understanding of the concepts.
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